A reflection over the x-axis only change the signal of the coordinate y of the point. Hence, the coordinates of vertex B' are:

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3 gallons in 15 seconds would be 3/15
so for 1 gallon 15/3 = 5
it would be 1 gallon every 5 seconds so 1/5
Answer:
11x+2y+21 x = 15
2x+3y+6z = -29
13x+9x+2x =22
Step-by-step explanation:
This is an augmented matrix
It is the coefficients of the variables and the last number is the constant
11x+2y+21 x = 15
2x+3y+6z = -29
13x+9x+2x =22
If you are having trouble on this question (which myself needed help on) go to CPM Homework Help and select the Chapter 2 and lesson 2.2.5. problem.2-90
Answer: 135.42
Step-by-step explanation: